Finding the Third Proportional to 64,944.75 and 139,753.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,944.75 : 139,753.50 = 139,753.50 : x
2. Step 2: Convert to fraction form
   64,944.75/139,753.50 = 139,753.50/x
3. Step 3: Cross multiply
   64,944.75x = 139,753.50 × 139,753.50
4. Step 4: Simplify right side
   64,944.75x = 19,531,040,762.25
5. Step 5: Solve for x
   x = 19,531,040,762.25/64,944.75
6. Step 6: Final answer
   x = 300,733.17